I agree with Paul2000 on this – sticker away.
I have heard so much BS on this over the years. It used to be all about letting people’s tyres down and then them have a crash and you being responsible (which you would be)
That evolved into the idea if you put a sticker on someone’s windshield and they couldn’t see past it and then drove and had an accident, you would be in trouble then too. I don’t think so! If someone is stupid enough to drive when they can’t see properly, that’s their problem. A flat tyre may not be obvious until it’s too late.
A sticker that’s hard, but not impossible to remove, in a place where the driver can clearly see it, could work wonders.
I’m still partial to the sign that says “Warning – cars parked here illegally have been vandalised”. Not a threat … a community service announcement.
However, on the sticker danger issue, I did see a young woman driving in the rain the other day with her parking ticket flailing back and forth on her windscreen wiper. She must have thought that if she didn’t open it, it wouldn’t count. I think she may be in for a surprise.
Looking for ‘no parking’ stickers on the Interweb, I found THIS charming American site where they promise your phone calls will be answered by “nice people … with possibly one exception”.
But is there anywhere in Australia that you can buy big, annoying, shredding parking violation stickers?